## What is resonance condition in AC LCR circuit?

Complete answer: When resonance occurs, the above expressions become equal to each other. By equating them we can get the condition for resonance in the series LCR circuit. XL=XCωL=1ωCω2=1LC⇒ω=1√LC. This is the expression for resonant frequency for a series LCR circuit at which the resonance occurs.

What is resonance frequency of RLC circuit?

The resonant frequency of the series RLC circuit is expressed as. fr = 1/2π√(LC) At its resonant frequency, the total impedance of a series RLC circuit is at its minimum. It also means that the current will peak at the resonant frequency as both inductor and capacitor appear as a short circuit.

### What is the formula of the resonance frequency of a series RLC circuit?

The resonant frequency is found by using the expression in f0=12π√LC f 0 = 1 2 π L C . The current at that frequency is the same as if the resistor alone were in the circuit.

What happens at resonance to the current in a RLC circuit?

At resonance in series RLC circuit, both inductive and capacitive reactance cancel each other and we know that in series circuit, the current flowing through all the elements is same, So the voltage across inductor and capacitor is equal in magnitude and opposite in direction and thereby they cancel each other.

#### What is the condition of resonance?

The conditions to produce resonance in an object are: The object must have a minimum of one natural frequency of vibration. The object must be driven by an external force of vibration. The frequency of the external vibrating force must be similar to the object’s natural frequency of vibration.

What is the condition for series resonance?

In RLC series circuit, when the circuit current is in phase with the voltage, the circuit is said to be in Series Resonance. The resonance condition in the circuit arises when the inductive reactance is equal to the capacitive reactance.

## Does current change in RLC circuit?

In summary, when the voltage applied to an inductor is changed, the current also changes, but the change in current lags the change in voltage in an RL circuit.

What are the application of resonance?

One use for resonance is to establish a condition of stable frequency in circuits designed to produce AC signals. Usually, a parallel (tank) circuit is used for this purpose, with the capacitor and inductor directly connected together, exchanging energy between each other.

### How do you know if there are resonance structures?

Because resonance structures are the same molecules, they must have:

1. The same molecular formulas.
2. The same total number of electrons (same overall charge).
3. The same atoms connected together. Although, they can differ in whether the connections are single, double or triple bonds.